MySQL删除按钮通常是指在用户界面中用于删除MySQL数据库中记录的一个操作按钮。这个按钮通常与后端服务器交互,执行删除操作。
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以下是一个简单的示例代码,展示如何在前端页面上添加一个删除按钮,并通过后端API接口执行删除操作。
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Delete Example</title>
</head>
<body>
<button id="deleteButton">Delete Record</button>
<script>
document.getElementById('deleteButton').addEventListener('click', function() {
if (confirm('Are you sure you want to delete this record?')) {
fetch('/api/deleteRecord', {
method: 'POST',
headers: {
'Content-Type': 'application/json'
},
body: JSON.stringify({ id: 1 }) // 假设要删除的记录ID为1
})
.then(response => response.json())
.then(data => {
if (data.success) {
alert('Record deleted successfully!');
} else {
alert('Failed to delete record: ' + data.message);
}
})
.catch(error => {
console.error('Error:', error);
});
}
});
</script>
</body>
</html>
const express = require('express');
const mysql = require('mysql');
const app = express();
app.use(express.json());
const connection = mysql.createConnection({
host: 'localhost',
user: 'root',
password: 'password',
database: 'mydatabase'
});
connection.connect();
app.post('/api/deleteRecord', (req, res) => {
const recordId = req.body.id;
connection.query('DELETE FROM mytable WHERE id = ?', [recordId], (error, results) => {
if (error) {
res.json({ success: false, message: error.message });
} else {
res.json({ success: true });
}
});
});
app.listen(3000, () => {
console.log('Server is running on port 3000');
});
希望这些信息对你有所帮助!
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